Bridge Science and Production Center (St. Petersburg) developed the drafts of interstate standards for bolt kits of high-strength fasteners.
The list of these standards includes: High-strength structural bolting assemblies for preloading. Part 1: Genaral requirements; Part 2: Suitability test for preloading; Part 3: System HR (…)
via Bolt Kits of High-Strength Fasteners will be Standardized in Russia.